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(No Model.)

A. KRIEGER.

SAW TOOTH.

No. 340,051. Patented Apr. 13, 1886.

WITNESSES INVENTOR ATTORNEYS NITED STATES PATENT FFICEO ANDREW KRIEGER, OF COLUMBUS, OHIO, ASSIGNOR TO JAMES OHLEN, .OF SAME PLACE.

SAW-TOOTH.

SPECIFICATION forming part of Letters Patent No. 340,051, dated April 13, 1886.

Application filed Derembcril 1885. Serial No.187,055.

T0 aZZ whom it may concern.-

Be itknown that I, ANDREW KRIEGER, a citizen of the United States, residing at ()0- lumbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Inserted-Tooth Saws; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation of this invention, and is a side view. Fig. 2 is a vertical section. Fig. 3 is a detail sectional view.

This invention has relation to improvements in saws having their teeth inserted, the objects being to insert the teeth more easily and firmly than in the usual construction; and it consists in the construction and novel arrangement of parts, as will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, A designates a portion of a saw, provided with the socket B, made on the arc of a circle, and having at its rear or following end the cut-away portion or recess B, the edge of which is on the arc of a circle concentric with but larger than that upon which B is struck. The socket B is to receive the clamp hereinafter described, and is provided along its edge with the rib or projection b, V-shaped in cross-section. In practice the edge itself is made V-shaped in cross-section, being of easier construction, and giving a firmer hold between the socket and clamp. The recess B is the tooth-socket proper, and is provided on its edge with the ribs 1), similar to b, or has said edge made V- shaped in cross-section in similar manner.

0 is the tooth-clamp, having on its inner convex edge the groove 0, which corresponds in shape to and rides upon the rib b, as shown.

0 is a notch in the edge of the clamp, at the end of the grooved portion of the same, which notch serves as a shoulder to support the inner end of the tooth hereinafter described.

(N0 model.)

The part C of the edge of the clamp outside of the notch, and designed to lie adjacent to the inner edge of the tooth, is made slightly convex and is ungrooved.

D is the tooth, having its outer end formed into a transverse cuttingedge in the ordinary manner, and provided on its inner edge with the foot d, which enters and is supported by the notch c. The outer edge of the tooth is convex, and is provided with a groove, (7, V- shaped in cross-section, which his upon the rib b of the tooth-recess B.

E is along notch or recess on the inner edge of the tooth, and having its bottom or door 6 made on a right line. The said lioor rests over the slightly-convex part C of the edge of the clamp.

e is a shoulder on the outer edge of the tooth near its point, and designed to bear against the point e of the tootlrreccss when the tooth is moved home.

F is a shield made ofsheet metal, and having a part, j", which is inserted between the bottom of the notch E and the slightly-convex part 0 of the edge of the clamp. The shield thence bends over the end of the clamp, and lies between the same and the outer shoulder of the notch E, and thence has an extension,f, which lies against the inner edge of the clam p,and is provided with the side flanges, f' f lying against the opposite sides of the clamp, as shown.

In operation the straight bottom 6 of the notch E rests centrally on the slightlyconvex part 0 of the edge of the clamp, and can turn slightly thereon and accommodate its position so that the outer edge of the tooth will receive throughout its length a constant and uniform pressure for the meeting edge of the tooth-recess B. If the bottom 6 and part 0 were both straight, the edge of the tooth-recess would not bear evenly on the outer edge of the tooth, but would be apt to be loose either at its inner or outer end. The shield F protects the sides of the clamp from wearing and consequently thinning the latter. It

also prevents sawdust from entering the kerf of the saw, and consequently clogging the same.

Having described this invention, what I claim, and desire to secure by Letters Patent,

1. In a saw, the combination of the socket having the tooth-recess, the clamp having the slightly-convex part on its edge adjacent to its end, and the tooth having the notch with a straight bottom, which recess lies upon the slightly-convex part of the edge of the clamp, and by its coaction therewith keeps the pressure between the outer edge of the tooth and the meeting edge of the tooth-recess equal throughout their entire lengths, substantially as specified.

2. In a saw, the combination of the socket having the tooth-recess, theclamp having the slightly-convex part on its edge, the tooth having the notch with a straight bottom, and the shield having one portion between the bottom of the notch and the slightly-convex part on the edge of the clamp, and another portion lying against the inner edge of the clamp and provided with the side flanges, which rest against the opposite sides of the clamp,

substantially as specified.

3. In a saw, the combination of the socket B, having the rib b on its edge, and provided with the tooth-recess having the rib b, the tooth-clamp 0,.provided with the groove 0,

notch c, and slightly-convex portion 0 on its edge, the tooth D, provided with the foot d,

groove (1, and notch E. having the straight or flat bottom, and the shield F, having thestrip f, which lies between the tooth and clamp, and the part or extension f, which lies against the edge of the clamp, and is provided with.

the flanges f substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses. V

ANDREW KRIEGER.

Vitnesses':

JOHN A. KEGHT, J AMEs M. LoREN; 

